The operations manager of K-Sea Transportation reported to the Coast Guard that the tug Pacific Raven was experiencing a heavy vibration from their starboard main diesel engine while towing Barge 340 to Shemya Island, Alaska, at 7 p.m. Monday.

“Though this is a minor mechanical issue the company was very proactive in contacting the Coast Guard,” said Capt. Mark Hamilton, commander Sector Anchorage. “This type of positive communication allows all parties to maximize the resources available to them and respond in a timely manner to new developments.”

The crew secured the engine and is currently waiting for a weather window to transit to Adak. They anticipate starting the transit this evening. They are expected to arrive in Adak Thursday. The crew is checking in with the Coast Guard Sector Anchorage command center every two hours.

Weather on scene is reported as 35 mph winds with seas around 3 feet in the lee of the island and rain. Outside of the lee the seas are about 12 feet. A small craft advisory is in effect for the area.

The vessel’s chief engineer has isolated a coupling in the reduction gear as the source of the issue. It is unknown at this time if there is further damage. The company, K-Sea Transportation, is mobilizing personnel and parts to meet the tug to conduct repairs.